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<FONT color="green">001</FONT>    /*<a name="line.1"></a>
<FONT color="green">002</FONT>     * Licensed to the Apache Software Foundation (ASF) under one or more<a name="line.2"></a>
<FONT color="green">003</FONT>     * contributor license agreements.  See the NOTICE file distributed with<a name="line.3"></a>
<FONT color="green">004</FONT>     * this work for additional information regarding copyright ownership.<a name="line.4"></a>
<FONT color="green">005</FONT>     * The ASF licenses this file to You under the Apache License, Version 2.0<a name="line.5"></a>
<FONT color="green">006</FONT>     * (the "License"); you may not use this file except in compliance with<a name="line.6"></a>
<FONT color="green">007</FONT>     * the License.  You may obtain a copy of the License at<a name="line.7"></a>
<FONT color="green">008</FONT>     *<a name="line.8"></a>
<FONT color="green">009</FONT>     *      http://www.apache.org/licenses/LICENSE-2.0<a name="line.9"></a>
<FONT color="green">010</FONT>     *<a name="line.10"></a>
<FONT color="green">011</FONT>     * Unless required by applicable law or agreed to in writing, software<a name="line.11"></a>
<FONT color="green">012</FONT>     * distributed under the License is distributed on an "AS IS" BASIS,<a name="line.12"></a>
<FONT color="green">013</FONT>     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.<a name="line.13"></a>
<FONT color="green">014</FONT>     * See the License for the specific language governing permissions and<a name="line.14"></a>
<FONT color="green">015</FONT>     * limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    package org.apache.commons.beanutils.expression;<a name="line.17"></a>
<FONT color="green">018</FONT>    <a name="line.18"></a>
<FONT color="green">019</FONT>    /**<a name="line.19"></a>
<FONT color="green">020</FONT>     * Default Property Name Expression {@link Resolver} Implementation.<a name="line.20"></a>
<FONT color="green">021</FONT>     * &lt;p&gt;<a name="line.21"></a>
<FONT color="green">022</FONT>     * This class assists in resolving property names in the following five formats,<a name="line.22"></a>
<FONT color="green">023</FONT>     * with the layout of an identifying String in parentheses:<a name="line.23"></a>
<FONT color="green">024</FONT>     * &lt;ul&gt;<a name="line.24"></a>
<FONT color="green">025</FONT>     * &lt;li&gt;&lt;strong&gt;Simple (&lt;code&gt;name&lt;/code&gt;)&lt;/strong&gt; - The specified<a name="line.25"></a>
<FONT color="green">026</FONT>     *     &lt;code&gt;name&lt;/code&gt; identifies an individual property of a particular<a name="line.26"></a>
<FONT color="green">027</FONT>     *     JavaBean.  The name of the actual getter or setter method to be used<a name="line.27"></a>
<FONT color="green">028</FONT>     *     is determined using standard JavaBeans instrospection, so that (unless<a name="line.28"></a>
<FONT color="green">029</FONT>     *     overridden by a &lt;code&gt;BeanInfo&lt;/code&gt; class, a property named "xyz"<a name="line.29"></a>
<FONT color="green">030</FONT>     *     will have a getter method named &lt;code&gt;getXyz()&lt;/code&gt; or (for boolean<a name="line.30"></a>
<FONT color="green">031</FONT>     *     properties only) &lt;code&gt;isXyz()&lt;/code&gt;, and a setter method named<a name="line.31"></a>
<FONT color="green">032</FONT>     *     &lt;code&gt;setXyz()&lt;/code&gt;.&lt;/li&gt;<a name="line.32"></a>
<FONT color="green">033</FONT>     * &lt;li&gt;&lt;strong&gt;Nested (&lt;code&gt;name1.name2.name3&lt;/code&gt;)&lt;/strong&gt; The first<a name="line.33"></a>
<FONT color="green">034</FONT>     *     name element is used to select a property getter, as for simple<a name="line.34"></a>
<FONT color="green">035</FONT>     *     references above.  The object returned for this property is then<a name="line.35"></a>
<FONT color="green">036</FONT>     *     consulted, using the same approach, for a property getter for a<a name="line.36"></a>
<FONT color="green">037</FONT>     *     property named &lt;code&gt;name2&lt;/code&gt;, and so on.  The property value that<a name="line.37"></a>
<FONT color="green">038</FONT>     *     is ultimately retrieved or modified is the one identified by the<a name="line.38"></a>
<FONT color="green">039</FONT>     *     last name element.&lt;/li&gt;<a name="line.39"></a>
<FONT color="green">040</FONT>     * &lt;li&gt;&lt;strong&gt;Indexed (&lt;code&gt;name[index]&lt;/code&gt;)&lt;/strong&gt; - The underlying<a name="line.40"></a>
<FONT color="green">041</FONT>     *     property value is assumed to be an array, or this JavaBean is assumed<a name="line.41"></a>
<FONT color="green">042</FONT>     *     to have indexed property getter and setter methods.  The appropriate<a name="line.42"></a>
<FONT color="green">043</FONT>     *     (zero-relative) entry in the array is selected.  &lt;code&gt;List&lt;/code&gt;<a name="line.43"></a>
<FONT color="green">044</FONT>     *     objects are now also supported for read/write.  You simply need to define<a name="line.44"></a>
<FONT color="green">045</FONT>     *     a getter that returns the &lt;code&gt;List&lt;/code&gt;&lt;/li&gt;<a name="line.45"></a>
<FONT color="green">046</FONT>     * &lt;li&gt;&lt;strong&gt;Mapped (&lt;code&gt;name(key)&lt;/code&gt;)&lt;/strong&gt; - The JavaBean<a name="line.46"></a>
<FONT color="green">047</FONT>     *     is assumed to have an property getter and setter methods with an<a name="line.47"></a>
<FONT color="green">048</FONT>     *     additional attribute of type &lt;code&gt;java.lang.String&lt;/code&gt;.&lt;/li&gt;<a name="line.48"></a>
<FONT color="green">049</FONT>     * &lt;li&gt;&lt;strong&gt;Combined (&lt;code&gt;name1.name2[index].name3(key)&lt;/code&gt;)&lt;/strong&gt; -<a name="line.49"></a>
<FONT color="green">050</FONT>     *     Combining mapped, nested, and indexed references is also<a name="line.50"></a>
<FONT color="green">051</FONT>     *     supported.&lt;/li&gt;<a name="line.51"></a>
<FONT color="green">052</FONT>     * &lt;/ul&gt;<a name="line.52"></a>
<FONT color="green">053</FONT>     *<a name="line.53"></a>
<FONT color="green">054</FONT>     * @version $Revision: 473888 $ $Date: 2006-11-12 06:21:24 +0000 (Sun, 12 Nov 2006) $<a name="line.54"></a>
<FONT color="green">055</FONT>     * @since 1.8.0<a name="line.55"></a>
<FONT color="green">056</FONT>     */<a name="line.56"></a>
<FONT color="green">057</FONT>    public class DefaultResolver implements Resolver {<a name="line.57"></a>
<FONT color="green">058</FONT>    <a name="line.58"></a>
<FONT color="green">059</FONT>        private static final char NESTED        = '.';<a name="line.59"></a>
<FONT color="green">060</FONT>        private static final char MAPPED_START  = '(';<a name="line.60"></a>
<FONT color="green">061</FONT>        private static final char MAPPED_END    = ')';<a name="line.61"></a>
<FONT color="green">062</FONT>        private static final char INDEXED_START = '[';<a name="line.62"></a>
<FONT color="green">063</FONT>        private static final char INDEXED_END   = ']';<a name="line.63"></a>
<FONT color="green">064</FONT>    <a name="line.64"></a>
<FONT color="green">065</FONT>        /**<a name="line.65"></a>
<FONT color="green">066</FONT>         * Default Constructor.<a name="line.66"></a>
<FONT color="green">067</FONT>         */<a name="line.67"></a>
<FONT color="green">068</FONT>        public DefaultResolver() {<a name="line.68"></a>
<FONT color="green">069</FONT>        }<a name="line.69"></a>
<FONT color="green">070</FONT>    <a name="line.70"></a>
<FONT color="green">071</FONT>        /**<a name="line.71"></a>
<FONT color="green">072</FONT>         * Return the index value from the property expression or -1.<a name="line.72"></a>
<FONT color="green">073</FONT>         *<a name="line.73"></a>
<FONT color="green">074</FONT>         * @param expression The property expression<a name="line.74"></a>
<FONT color="green">075</FONT>         * @return The index value or -1 if the property is not indexed<a name="line.75"></a>
<FONT color="green">076</FONT>         * @throws IllegalArgumentException If the indexed property is illegally<a name="line.76"></a>
<FONT color="green">077</FONT>         * formed or has an invalid (non-numeric) value.<a name="line.77"></a>
<FONT color="green">078</FONT>         */<a name="line.78"></a>
<FONT color="green">079</FONT>        public int getIndex(String expression) {<a name="line.79"></a>
<FONT color="green">080</FONT>            if (expression == null || expression.length() == 0) {<a name="line.80"></a>
<FONT color="green">081</FONT>                return -1;<a name="line.81"></a>
<FONT color="green">082</FONT>            }<a name="line.82"></a>
<FONT color="green">083</FONT>            for (int i = 0; i &lt; expression.length(); i++) {<a name="line.83"></a>
<FONT color="green">084</FONT>                char c = expression.charAt(i);<a name="line.84"></a>
<FONT color="green">085</FONT>                if (c == NESTED || c == MAPPED_START) {<a name="line.85"></a>
<FONT color="green">086</FONT>                    return -1;<a name="line.86"></a>
<FONT color="green">087</FONT>                } else if (c == INDEXED_START) {<a name="line.87"></a>
<FONT color="green">088</FONT>                    int end = expression.indexOf(INDEXED_END, i);<a name="line.88"></a>
<FONT color="green">089</FONT>                    if (end &lt; 0) {<a name="line.89"></a>
<FONT color="green">090</FONT>                        throw new IllegalArgumentException("Missing End Delimiter");<a name="line.90"></a>
<FONT color="green">091</FONT>                    }<a name="line.91"></a>
<FONT color="green">092</FONT>                    String value = expression.substring(i + 1, end);<a name="line.92"></a>
<FONT color="green">093</FONT>                    if (value.length() == 0) {<a name="line.93"></a>
<FONT color="green">094</FONT>                        throw new IllegalArgumentException("No Index Value");<a name="line.94"></a>
<FONT color="green">095</FONT>                    }<a name="line.95"></a>
<FONT color="green">096</FONT>                    int index = 0;<a name="line.96"></a>
<FONT color="green">097</FONT>                    try {<a name="line.97"></a>
<FONT color="green">098</FONT>                        index = Integer.parseInt(value, 10);<a name="line.98"></a>
<FONT color="green">099</FONT>                    } catch (Exception e) {<a name="line.99"></a>
<FONT color="green">100</FONT>                        throw new IllegalArgumentException("Invalid index value '"<a name="line.100"></a>
<FONT color="green">101</FONT>                                + value + "'");<a name="line.101"></a>
<FONT color="green">102</FONT>                    }<a name="line.102"></a>
<FONT color="green">103</FONT>                    return index;<a name="line.103"></a>
<FONT color="green">104</FONT>                }<a name="line.104"></a>
<FONT color="green">105</FONT>            }<a name="line.105"></a>
<FONT color="green">106</FONT>            return -1;<a name="line.106"></a>
<FONT color="green">107</FONT>        }<a name="line.107"></a>
<FONT color="green">108</FONT>    <a name="line.108"></a>
<FONT color="green">109</FONT>        /**<a name="line.109"></a>
<FONT color="green">110</FONT>         * Return the map key from the property expression or &lt;code&gt;null&lt;/code&gt;.<a name="line.110"></a>
<FONT color="green">111</FONT>         *<a name="line.111"></a>
<FONT color="green">112</FONT>         * @param expression The property expression<a name="line.112"></a>
<FONT color="green">113</FONT>         * @return The index value<a name="line.113"></a>
<FONT color="green">114</FONT>         * @throws IllegalArgumentException If the mapped property is illegally formed.<a name="line.114"></a>
<FONT color="green">115</FONT>         */<a name="line.115"></a>
<FONT color="green">116</FONT>        public String getKey(String expression) {<a name="line.116"></a>
<FONT color="green">117</FONT>            if (expression == null || expression.length() == 0) {<a name="line.117"></a>
<FONT color="green">118</FONT>                return null;<a name="line.118"></a>
<FONT color="green">119</FONT>            }<a name="line.119"></a>
<FONT color="green">120</FONT>            for (int i = 0; i &lt; expression.length(); i++) {<a name="line.120"></a>
<FONT color="green">121</FONT>                char c = expression.charAt(i);<a name="line.121"></a>
<FONT color="green">122</FONT>                if (c == NESTED || c == INDEXED_START) {<a name="line.122"></a>
<FONT color="green">123</FONT>                    return null;<a name="line.123"></a>
<FONT color="green">124</FONT>                } else if (c == MAPPED_START) {<a name="line.124"></a>
<FONT color="green">125</FONT>                    int end = expression.indexOf(MAPPED_END, i);<a name="line.125"></a>
<FONT color="green">126</FONT>                    if (end &lt; 0) {<a name="line.126"></a>
<FONT color="green">127</FONT>                        throw new IllegalArgumentException("Missing End Delimiter");<a name="line.127"></a>
<FONT color="green">128</FONT>                    }<a name="line.128"></a>
<FONT color="green">129</FONT>                    return expression.substring(i + 1, end);<a name="line.129"></a>
<FONT color="green">130</FONT>                }<a name="line.130"></a>
<FONT color="green">131</FONT>            }<a name="line.131"></a>
<FONT color="green">132</FONT>            return null;<a name="line.132"></a>
<FONT color="green">133</FONT>        }<a name="line.133"></a>
<FONT color="green">134</FONT>    <a name="line.134"></a>
<FONT color="green">135</FONT>        /**<a name="line.135"></a>
<FONT color="green">136</FONT>         * Return the property name from the property expression.<a name="line.136"></a>
<FONT color="green">137</FONT>         *<a name="line.137"></a>
<FONT color="green">138</FONT>         * @param expression The property expression<a name="line.138"></a>
<FONT color="green">139</FONT>         * @return The property name<a name="line.139"></a>
<FONT color="green">140</FONT>         */<a name="line.140"></a>
<FONT color="green">141</FONT>        public String getProperty(String expression) {<a name="line.141"></a>
<FONT color="green">142</FONT>            if (expression == null || expression.length() == 0) {<a name="line.142"></a>
<FONT color="green">143</FONT>                return expression;<a name="line.143"></a>
<FONT color="green">144</FONT>            }<a name="line.144"></a>
<FONT color="green">145</FONT>            for (int i = 0; i &lt; expression.length(); i++) {<a name="line.145"></a>
<FONT color="green">146</FONT>                char c = expression.charAt(i);<a name="line.146"></a>
<FONT color="green">147</FONT>                if (c == NESTED) {<a name="line.147"></a>
<FONT color="green">148</FONT>                    return expression.substring(0, i);<a name="line.148"></a>
<FONT color="green">149</FONT>                } else if (c == MAPPED_START || c == INDEXED_START) {<a name="line.149"></a>
<FONT color="green">150</FONT>                    return expression.substring(0, i);<a name="line.150"></a>
<FONT color="green">151</FONT>                }<a name="line.151"></a>
<FONT color="green">152</FONT>            }<a name="line.152"></a>
<FONT color="green">153</FONT>            return expression;<a name="line.153"></a>
<FONT color="green">154</FONT>        }<a name="line.154"></a>
<FONT color="green">155</FONT>    <a name="line.155"></a>
<FONT color="green">156</FONT>        /**<a name="line.156"></a>
<FONT color="green">157</FONT>         * Indicates whether or not the expression<a name="line.157"></a>
<FONT color="green">158</FONT>         * contains nested property expressions or not.<a name="line.158"></a>
<FONT color="green">159</FONT>         *<a name="line.159"></a>
<FONT color="green">160</FONT>         * @param expression The property expression<a name="line.160"></a>
<FONT color="green">161</FONT>         * @return The next property expression<a name="line.161"></a>
<FONT color="green">162</FONT>         */<a name="line.162"></a>
<FONT color="green">163</FONT>        public boolean hasNested(String expression) {<a name="line.163"></a>
<FONT color="green">164</FONT>            if (expression == null || expression.length() == 0) {<a name="line.164"></a>
<FONT color="green">165</FONT>                return false;<a name="line.165"></a>
<FONT color="green">166</FONT>            } else {<a name="line.166"></a>
<FONT color="green">167</FONT>                return (remove(expression) != null);<a name="line.167"></a>
<FONT color="green">168</FONT>            }<a name="line.168"></a>
<FONT color="green">169</FONT>        }<a name="line.169"></a>
<FONT color="green">170</FONT>    <a name="line.170"></a>
<FONT color="green">171</FONT>        /**<a name="line.171"></a>
<FONT color="green">172</FONT>         * Indicate whether the expression is for an indexed property or not.<a name="line.172"></a>
<FONT color="green">173</FONT>         *<a name="line.173"></a>
<FONT color="green">174</FONT>         * @param expression The property expression<a name="line.174"></a>
<FONT color="green">175</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the expresion is indexed,<a name="line.175"></a>
<FONT color="green">176</FONT>         *  otherwise &lt;code&gt;false&lt;/code&gt;<a name="line.176"></a>
<FONT color="green">177</FONT>         */<a name="line.177"></a>
<FONT color="green">178</FONT>        public boolean isIndexed(String expression) {<a name="line.178"></a>
<FONT color="green">179</FONT>            if (expression == null || expression.length() == 0) {<a name="line.179"></a>
<FONT color="green">180</FONT>                return false;<a name="line.180"></a>
<FONT color="green">181</FONT>            }<a name="line.181"></a>
<FONT color="green">182</FONT>            for (int i = 0; i &lt; expression.length(); i++) {<a name="line.182"></a>
<FONT color="green">183</FONT>                char c = expression.charAt(i);<a name="line.183"></a>
<FONT color="green">184</FONT>                if (c == NESTED || c == MAPPED_START) {<a name="line.184"></a>
<FONT color="green">185</FONT>                    return false;<a name="line.185"></a>
<FONT color="green">186</FONT>                } else if (c == INDEXED_START) {<a name="line.186"></a>
<FONT color="green">187</FONT>                    return true;<a name="line.187"></a>
<FONT color="green">188</FONT>                }<a name="line.188"></a>
<FONT color="green">189</FONT>            }<a name="line.189"></a>
<FONT color="green">190</FONT>            return false;<a name="line.190"></a>
<FONT color="green">191</FONT>        }<a name="line.191"></a>
<FONT color="green">192</FONT>    <a name="line.192"></a>
<FONT color="green">193</FONT>        /**<a name="line.193"></a>
<FONT color="green">194</FONT>         * Indicate whether the expression is for a mapped property or not.<a name="line.194"></a>
<FONT color="green">195</FONT>         *<a name="line.195"></a>
<FONT color="green">196</FONT>         * @param expression The property expression<a name="line.196"></a>
<FONT color="green">197</FONT>         * @return &lt;code&gt;true&lt;/code&gt; if the expresion is mapped,<a name="line.197"></a>
<FONT color="green">198</FONT>         *  otherwise &lt;code&gt;false&lt;/code&gt;<a name="line.198"></a>
<FONT color="green">199</FONT>         */<a name="line.199"></a>
<FONT color="green">200</FONT>        public boolean isMapped(String expression) {<a name="line.200"></a>
<FONT color="green">201</FONT>            if (expression == null || expression.length() == 0) {<a name="line.201"></a>
<FONT color="green">202</FONT>                return false;<a name="line.202"></a>
<FONT color="green">203</FONT>            }<a name="line.203"></a>
<FONT color="green">204</FONT>            for (int i = 0; i &lt; expression.length(); i++) {<a name="line.204"></a>
<FONT color="green">205</FONT>                char c = expression.charAt(i);<a name="line.205"></a>
<FONT color="green">206</FONT>                if (c == NESTED || c == INDEXED_START) {<a name="line.206"></a>
<FONT color="green">207</FONT>                    return false;<a name="line.207"></a>
<FONT color="green">208</FONT>                } else if (c == MAPPED_START) {<a name="line.208"></a>
<FONT color="green">209</FONT>                    return true;<a name="line.209"></a>
<FONT color="green">210</FONT>                }<a name="line.210"></a>
<FONT color="green">211</FONT>            }<a name="line.211"></a>
<FONT color="green">212</FONT>            return false;<a name="line.212"></a>
<FONT color="green">213</FONT>        }<a name="line.213"></a>
<FONT color="green">214</FONT>    <a name="line.214"></a>
<FONT color="green">215</FONT>        /**<a name="line.215"></a>
<FONT color="green">216</FONT>         * Extract the next property expression from the<a name="line.216"></a>
<FONT color="green">217</FONT>         * current expression.<a name="line.217"></a>
<FONT color="green">218</FONT>         *<a name="line.218"></a>
<FONT color="green">219</FONT>         * @param expression The property expression<a name="line.219"></a>
<FONT color="green">220</FONT>         * @return The next property expression<a name="line.220"></a>
<FONT color="green">221</FONT>         */<a name="line.221"></a>
<FONT color="green">222</FONT>        public String next(String expression) {<a name="line.222"></a>
<FONT color="green">223</FONT>            if (expression == null || expression.length() == 0) {<a name="line.223"></a>
<FONT color="green">224</FONT>                return null;<a name="line.224"></a>
<FONT color="green">225</FONT>            }<a name="line.225"></a>
<FONT color="green">226</FONT>            boolean indexed = false;<a name="line.226"></a>
<FONT color="green">227</FONT>            boolean mapped  = false;<a name="line.227"></a>
<FONT color="green">228</FONT>            for (int i = 0; i &lt; expression.length(); i++) {<a name="line.228"></a>
<FONT color="green">229</FONT>                char c = expression.charAt(i);<a name="line.229"></a>
<FONT color="green">230</FONT>                if (indexed) {<a name="line.230"></a>
<FONT color="green">231</FONT>                    if (c == INDEXED_END) {<a name="line.231"></a>
<FONT color="green">232</FONT>                        return expression.substring(0, i + 1);<a name="line.232"></a>
<FONT color="green">233</FONT>                    }<a name="line.233"></a>
<FONT color="green">234</FONT>                } else if (mapped) {<a name="line.234"></a>
<FONT color="green">235</FONT>                    if (c == MAPPED_END) {<a name="line.235"></a>
<FONT color="green">236</FONT>                        return expression.substring(0, i + 1);<a name="line.236"></a>
<FONT color="green">237</FONT>                    }<a name="line.237"></a>
<FONT color="green">238</FONT>                } else {<a name="line.238"></a>
<FONT color="green">239</FONT>                    if (c == NESTED) {<a name="line.239"></a>
<FONT color="green">240</FONT>                        return expression.substring(0, i);<a name="line.240"></a>
<FONT color="green">241</FONT>                    } else if (c == MAPPED_START) {<a name="line.241"></a>
<FONT color="green">242</FONT>                        mapped = true;<a name="line.242"></a>
<FONT color="green">243</FONT>                    } else if (c == INDEXED_START) {<a name="line.243"></a>
<FONT color="green">244</FONT>                        indexed = true;<a name="line.244"></a>
<FONT color="green">245</FONT>                    }<a name="line.245"></a>
<FONT color="green">246</FONT>                }<a name="line.246"></a>
<FONT color="green">247</FONT>            }<a name="line.247"></a>
<FONT color="green">248</FONT>            return expression;<a name="line.248"></a>
<FONT color="green">249</FONT>        }<a name="line.249"></a>
<FONT color="green">250</FONT>    <a name="line.250"></a>
<FONT color="green">251</FONT>        /**<a name="line.251"></a>
<FONT color="green">252</FONT>         * Remove the last property expresson from the<a name="line.252"></a>
<FONT color="green">253</FONT>         * current expression.<a name="line.253"></a>
<FONT color="green">254</FONT>         *<a name="line.254"></a>
<FONT color="green">255</FONT>         * @param expression The property expression<a name="line.255"></a>
<FONT color="green">256</FONT>         * @return The new expression value, with first property<a name="line.256"></a>
<FONT color="green">257</FONT>         * expression removed - null if there are no more expressions<a name="line.257"></a>
<FONT color="green">258</FONT>         */<a name="line.258"></a>
<FONT color="green">259</FONT>        public String remove(String expression) {<a name="line.259"></a>
<FONT color="green">260</FONT>            if (expression == null || expression.length() == 0) {<a name="line.260"></a>
<FONT color="green">261</FONT>                return null;<a name="line.261"></a>
<FONT color="green">262</FONT>            }<a name="line.262"></a>
<FONT color="green">263</FONT>            String property = next(expression);<a name="line.263"></a>
<FONT color="green">264</FONT>            if (expression.length() == property.length()) {<a name="line.264"></a>
<FONT color="green">265</FONT>                return null;<a name="line.265"></a>
<FONT color="green">266</FONT>            }<a name="line.266"></a>
<FONT color="green">267</FONT>            int start = property.length();<a name="line.267"></a>
<FONT color="green">268</FONT>            if (expression.charAt(start) == NESTED) {<a name="line.268"></a>
<FONT color="green">269</FONT>                start++;<a name="line.269"></a>
<FONT color="green">270</FONT>            }<a name="line.270"></a>
<FONT color="green">271</FONT>            return expression.substring(start);<a name="line.271"></a>
<FONT color="green">272</FONT>        }<a name="line.272"></a>
<FONT color="green">273</FONT>    }<a name="line.273"></a>




























































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